The document describes several philanthropic organizations that are funding partners for the BUILD Health Challenge. It provides information on each funder's focus area, grant amounts, and assets. It then summarizes the governance structure for BUILD, which includes the Executive Steering Committee that provides strategic direction, and the Coordination Team led by the Executive Director. Technical assistance is provided by a Technical Assistance Group with primary liaisons from partner organizations. Grants management, communications, learning and evaluation, and technical assistance workstreams are described.